I thought I'd share this with the group. I've seen a few of these PVC dog barriers on other forums but this one is really easy to make and is really easy to put in and take out. I used lengths of electrical conduit PVC, a couple of conduit 90 degrees and plumbing T and 45 degree couplings. Some hammerite over the white couplings otherwise left the conduit grey (as I know my dog will be biting these parts. The ends just slot snugly into the gap between the rear seat and the pastic interior, at least on my Energi.